On the track
I am placed on the right side of the tracks, two miles in advance of limits and during planned hours
What is a Yellow/Red sign
I am used when a response is expected
What is Over
I include an address, cover an entire route for a train, and item numbers are consecutive
What is a TGBO
A train traveling prepared to stop in 1/2 the range of vision of any obstruction
What is Restricted Speed
A Precision Dispatching system
What is PDS
I protect temporary speed restrictions, planned works, tracks removed from service, tracks blocked with equipment and rail crossing protection that has malfunctioned
What is a GBO
I am CN, the desk number as shown in the System special instructions and location
What is required Identification for RTC's
Where trains must not sound their whistle for public grade crossings
What is a quiet zone
On this track, the maximum speed cannot exceed 10 mph, no occupied passenger train can be operated and no more than 5 cars placarded (hazardous Material) are allowed
What is FRA excepted track
Train management dispatch system
What is TMDS
I am what authorizes a train, roadway worker or on track equipment tracks to occupy specified limits
What is a track Authority
I am Initials and Engine number
How trains and engines identified
If both of me fail enroute, the train may proceed not exceeding 20 mph while head end passes over public grade crossings
What are ditch lights
I am issued to Roadway workers for limits within manual interlockers or control points
What is verbal protection
A safety overlay system which enforces limits of authority and restrictions pertaining to train movement
What is PTC (Positive Train Control)
I am the appearance of a fixed signal
What is a signal aspect
Equipment required to hear and talk to anyone via the radio
What are headsets/ headphones
I am used when a southbound train must enter the block with a north bound train
What is an opposing Move
I contain , track charts, station and siding names and methods of operation to provide a reference when one is unfamiliar with a territory
What are timetable instructions
A series of consecutive block signals that are activated by a train or by certain conditions that effect the use of the block
What is ABS (Automatic Block System)
I am connected to the main track, shown in the timetable and used for meeting trains
What is a siding
I am used when no response is expected
What is Out
A sufficient number of theses are needed to secure a train (except in a yard)
What is a Handbrake
I contain information and instructions related to rules and operating practices
What is a system operating bulletin
A signal system that uses block signal indications to authorize train movements
What is CTC (Centralized Traffic Control)